Efficient consumption and easy maintenance:
SEMHAI Engines offers an expansive selection of diesel engines tailored for stationary applications. These include centrifugal pumps, hydraulic pumps, air compressors, and air generators. Available in a diverse power spectrum—ION power from 415 kW to 920 kW or ICXN power ranging from 377 kW to 836 kW, adhering to ISO 3046-1 standards—these engines are optimally approved for driving centrifugal pumps with variable speed. Engineered for exceptional reliability and fuel economy, SEMHAI diesel engines are celebrated for their long service intervals and operational longevity. This exceptional power density transforms our diesel engines into highly efficient and versatile energy sources.
Performance features
1. Featuring three impeccable starting functions:
(1). Manual start function: Achieve seamless operation with the manual-automatic interlock capability via an intuitive switch system.
(2). Automatic-manual functions: Grants up to 3 starting attempts with a 'starter failure alarm' upon unsuccessful trials, exiting the starting state automatically. Rated load commencement is timed between 5-10-15 seconds, adjustable by unit capacity after the initial successful start.
(3). Emergency manual direct start function: Provides direct manual start during emergencies when self-controlled systems falter.
2. Automatic operation: Upon receiving a valid fire signal, the diesel fire pump automatically engages if power disruptions impede normal start. It reverts to electric pump operation once the power supply normalizes, ensuring uninterrupted efficiency.
3. Automatic shutdown: The diesel fire-fighting pump will execute a delayed and automatic shutdown when the fire signal ceases, ensuring safe operations.
4. Self-charging battery function: The battery autonomously charges via the diesel engine's electrical mains, ensuring a seamless start every time.
5. Comprehensive indicating system: Signals for readiness to start, manual and automatic start, operational status, shutdown, battery charging, overspeed, lubrication oil pressure indicators, temperature alerts, fuel level monitoring, and routine inspections.
6. Advanced alarm and protection system: Alerts and safeguards against starter failure after three attempts, overspeed, low lubricant oil pressure, turbocharger oil pressure anomalies, high cooling water temperature, automatic charging device failures, battery voltage fluctuations, and low fuel levels.
7. Advanced display systems: Real-time monitoring of engine oil pressure, engine speed, battery charge current, and voltage ensures peak performance tracking.
8. Direct-coupled design: The diesel engine and water pump are integrated using a high-flexible coupling on a shared base, ensuring a compact, high-performance, low-vibration installation that's conducive to on-site construction.
9. High pressure and substantial flow capacity: Choose from the IS series single-stage single-suction, SOW series single-stage double-suction, or SHD series segmental multistage pumps, catering to varied fire emergency demands with precision.
10. Adjustable flow and pressure: With mechanical or electronic speed governors, diesel pumps can seamlessly adjust engine speed to align pump flow and head with actual performance demands.
11. Water temperature pre-heating device: Featuring an AC220V cooling water preheater, the unit ensures optimal functionality even in environments below 5 ºC.
12. Dual battery circuits: In case of battery failure, an alternate battery automatically activates, ensuring uninterrupted power supply.
13. Maintenance-free battery: Designed for convenience, these batteries eliminate the need for frequent fluid replenishment, ensuring hassle-free maintenance.
14. Automatic Timing Inspection Test: Within fire systems, commonly remaining in standby mode, our unit excels by autonomously executing device tests. It ensures readiness by assessing standby conditions and promptly issuing alerts when necessary.
Note: Above functionalities are customizable to meet user-specific requirements. We offer bespoke designs tailored to individual needs, ensuring a perfect fit for every situation.
Selection Configuration of Diesel Engine
1. The Pump: Choose from our IS series single-stage, single-suction pumps; SOW series single-stage, double-suction pumps; SHD series multistage segment pumps; and ZW horizontal self-priming centrifugal pumps. Each type is engineered for optimal performance.
2. The Diesel Engine:
Our selection includes internationally renowned diesel engine brands, offering single-cylinder, two-cylinder, four-cylinder, and six-cylinder options. Enjoy a versatile speed range: 1500r/min, 1800r/min, 2400r/min, and 3000r/min, adapting seamlessly to your operational needs.
3. Other Accessories: Enhance your system with our robust filtration systems, efficient silencers, advanced cooling systems, durable fuel tanks, and common channel bases. Includes base fuel tanks, radiators, high-capacity batteries, and reliable chargers.
4. The Control Cabinet: Featuring SBC, PLC programming, and sensor technology, our automatic control cabinets are designed for seamless integration and sophisticated automation.
| Engine Speed |
1500r/min; 1800r/min; 2400/min; 2800/min; |
| Engine power |
24HP-2220HP |
| Pump diameter |
50-500mm |
| Flow range |
10-2000L/s |
| Working pressure range |
0.2-2.2Mpa |
| Temperature range |
Ambient temperature ≤60'C; |
| Ambient atmospheric pressure |
> 90KPa |
| Transmission medium |
Water or other liquids physical and chemical properties similar to water; |
| Seal plumbing parts |
No installment when inlet pressure above 0.03Mpa (G) |
| Engine power selection |
Under non-normal conditions, diesel input power will be less than the rated power, it need to choice higher power diesel engine to support pump to ensure the normal operation |
Presenting an internationally renowned diesel engine, featuring an impressive range of configurations: single-cylinder, two-cylinder, four-cylinder, and six-cylinder. Engineered to perfection, it supports a versatile speed range including 1500r/min, 1800r/min, 2400r/min, and 3000r/min.
Discover the SEMHAI Robust professional coupling adaptors, meticulously crafted to seamlessly connect diesel engines with pumps via a secure shaft linkage.
Our coupling adaptors ingeniously connect to a standard coupling, offering a straightforward plug-in installation with no need for aligning tools. Fashioned from durable polyamide nylon reinforced with fiberglass, they are torsionally rigid and maintenance-free. Perfectly suited for any hydrostatic drive application in construction, agriculture, and forestry machinery.
Introducing the Diesel Plus Fire Pump Controllers from SEMHAI, specifically designed to expertly manage and monitor 12 or 24 volt diesel fire pump engines. These controllers stand at the forefront of technological advancement in diesel engine management.
Features
Experience versatility with our Universal Supply Voltage, accommodating 100Vac to 240Vac effortlessly.
Enjoy dual output flexibility with 12 or 24 Vdc, conveniently selectable via a DIP switch.
Stay connected with our advanced Communications USB Port / Drive, ensuring seamless data management.
Effortlessly transfer data to and from a portable USB device, optimizing your workflow.
Engage with Embedded Web Pages* to access vital information at your fingertips.
Monitor and manage your operations with ease: view current status, data values, programmed set points, and historical performance.
Leverage Ethernet* for direct connection and efficient data transfer with a computer interface.
Enhance communication capabilities with the RS485 Port* for robust data handling.
Utilize MODBUS Communication for enhanced data exchange, with the COM Option* for added functionality.
Introducing the New Big Volume Dual Wall Diesel Subbase Generator Fuel Tank, designed for superior performance and reliability.
Our robust engine mounts are engineered to isolate vibrations, effectively reducing noise in both marine and industrial applications. Crafted from premium industrial-grade materials, these mounts extend the service life of your equipment compared to conventional options.
Our professional gearboxes are meticulously designed for direct diesel engine mounting, providing exceptional performance in speed adjustment applications. Featuring an SAE housing and fixed coupling (Rubber Block Drive) or a switchable BD or BDS clutch on the input side, they offer versatile solutions for complex mechanical needs.
Industry: Perfectly engineered for efficient boiler feed water systems and seamless cooling system operations, ensuring optimal performance and reliability.
Smelting: Expertly designed for water circulation systems and cooling systems, delivering robust and consistent cooling solutions for enhanced smelting operations.
Fire-fighting: Essential for comprehensive fire protection, our pump supports fire hydrant systems, sprinkler systems, spray cooling systems, foam systems, and water monitor systems, providing unmatched safety and reliability.
Ocean: Ideal for challenging environments, ensuring efficient wild water supply systems and island freshwater collection systems to meet the unique needs of oceanic regions.
Heating: Perfectly suited for water circulation systems and cooling systems, ensuring efficient heating and cooling balance for maximum comfort and energy efficiency.
Municipal: Built for critical applications such as emergency drainage and emergency water supply, offering dependable solutions during urgent municipal needs.
Agriculture: Designed to support irrigation and drainage systems, our pump provides the essential force needed for effective agricultural water management.
Professional Cooperation Agencies
Shanghai Semhai Pump Co., Ltd. has proudly cultivated robust and enduring partnerships with several prestigious domestic pump-testing experts and institutions, ensuring unparalleled quality and performance verification. Our esteemed partners include:
The illustrious National Quality Supervision and Inspection Center of Industrial Pumps, located in the heart of Tiexi District, Shenyang City,
The renowned Irrigation Machinery Products Quality Inspection Center of Machinery Industrial, based in the vibrant city of Zhenjiang,
The esteemed Ministry of Agriculture, Water Pump Quality Supervision and Testing Center, situated in bustling Chongqing City,
And the distinguished Shanghai Mechanical and Electrical Products Quality Inspection Center, strategically located in the dynamic metropolis of Shanghai City, among others.
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